Vacuum-assisted resin diffusion molding method for fiber-reinforced PBT composite material
A technology of fiber-reinforced materials and composite materials, applied in the field of large-scale thermoplastic composite components, can solve the problems of large-scale manufacturing limitations of large components, high molding temperature and pressure, and strict requirements for mold equipment, so as to avoid molding temperature and molding Effects of pressure, enhanced wetting, and ease of handling
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specific Embodiment approach 1
[0026] The catalyst used is dihydroxybutyl tin chloride of the type PC-4101 produced by Guangzhou Yuansu Chemical Co., Ltd.; the fiber reinforcement used is produced by Yixing Fuxing Glass Fiber Co., Ltd. with an area density of 300g / m 2 The glass fiber unidirectional cloth; the CBT resin used is the model CBT100 resin produced by Cyclics Company of the United States, and it is dried in an oven at 105 ° C for 10 h before use.
[0027] Step 1), attach the catalyst to the glass fiber unidirectional cloth. The specific operation is: pour the catalyst with a mass of 0.6% of the mass injected into the CBT resin into an appropriate amount of isopropanol solution, and use a magnetic stirrer to stir at 80°C for 10 minutes. Dissolve the catalyst completely, brush the solution evenly on the glass fiber cloth, put it in an oven at 130°C, bake for 30 minutes, and turn the glass fiber cloth over halfway.
[0028] Step 2), select a flat mold with a cavity thickness of 2mm, paste a high-temp...
specific Embodiment approach 2
[0033] The catalyst used is dihydroxybutyl tin chloride of the type PC-4101 produced by Guangzhou Yuansu Chemical Co., Ltd.; the fiber reinforcement used is produced by Sichuan Tuoxin Research Institute with an area density of 424g / m 2 The basalt fiber woven cloth; the CBT resin used is the type CBT100 resin produced by Cyclics Company of the United States, and it is dried in an oven at 105 ° C for 10 h before use.
[0034] Step 1), attach the catalyst to the basalt fiber woven cloth, the specific operation is: pour the catalyst with a mass of 0.6% of the mass injected into the CBT resin into an appropriate amount of isopropanol solution, and use a magnetic stirrer to stir at 80°C for 10 minutes to make The catalyst is completely dissolved, brush the solution evenly on the fiber cloth, put it in an oven at 130°C, bake for 30 minutes, and turn the fiber woven cloth over halfway.
[0035] Step 2) Select a flat mold with a cavity thickness of 4mm, paste a high-temperature release...
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